Strangely i can't find it any where but when i stdout the output of strace into afile like this:

strace foo.exe | & tee foo.log

the out put is to short, how can i make the width longer?


3 Answers 3


The "-s" option under Linux, from the "strace" package, will let you specify the width:

-s strsize  Specify  the  maximum  string  size  to  print  (the
            default is 32).  Note that filenames are not consid-
            ered strings and are always printed in full.
  • 2
    And with colors: strace $CMD 2>&1 > /dev/null | vim -c ':set syntax=strace' -.
    – Pablo A
    Aug 27, 2017 at 14:43

Use '-o filename' option:

  strace -f -o foo.log foo

man strace

-o filename Write the trace output to the file filename

  • 1
    True, not directly an answer, but I found it useful in this context nonetheless. It does write the full strings into the file.
    – user63623
    Jan 12, 2017 at 15:49
  • 3
    Not really, @user63623. I've tried it here and ended up having to use -s anyway (strace 4.26).
    – hdiogenes
    Jun 3, 2019 at 22:13

As other answers point to good directions in general, the specific issue is probably the space you have between "|" and "&". If you're trying to use a bash "|&" to pipe both stdout and stderr you can't have a space between those characters.

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